ASN.1 Language Support for Visual Studio Code

This extension adds IntelliSense-like editing and binary message decoding for Abstract Syntax Notation One (ASN.1). For example:

• Syntax highlighting and coloring.
• Auto-completion.
• Schema validation and error highlighting.
• Folders/Workspaces support (ability to group multiple ASN.1 files together as one unit).
• Go To Definition.
• Find All References.
• Rename Identifier.
• Document Formatting.
• Folding Ranges.
• Code Snippets.
• Decode and View ASN.1 binary encodings (decode from .der, .ber, .oer, .coer, .per, .uper, .jer files).

Usage

Open an existing ASN.1 schema file or create a new one (the file should have the .asn extension) and start editing.

Requirements

• .NET Core Runtime version 3.1
• Visual Studio Code (1.34 or higher)

Known Issues

The extension might not work properly in Ubuntu if you installed the .NET Core Runtime from a snap. Add /snap/dotnet-sdk/current to your PATH instead of creating an alias as suggested in the documentation.

If the extension issues a Launching server using command dotnet failed error, you migth try installing the OmniSharp extesion and relaunching the editor.

Contact

ASN1Vcx is in beta stage, we'd appreciate your feedback.

Authored by OSS Nokalva, Inc. https://www.oss.com/

Contact us at: https://www.oss.com/company/contact-us.html